This worked great for winterizing my fifth wheel. I looked for valves and couplings for everything you need in well-known hardware stores. No one had what I needed, and when they did, it seemed like I got $40 plus by the time I added it all up. I found this 3 way was so easy. I only cut the water tank once and added 3-way and 3-4 foot 1/2 clear tubing. Less than 10 minutes. I finished. So easy.
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